Effect of Chitosan and Liposome Nanoparticles as Adjuvant Codelivery on the Immunoglobulin G Subclass Distribution in a Mouse Model

Figure 3

Anti-pneumococcal type 14 polysaccharide (anti-Pn14PS) IgG antibody subclass distribution. Mouse sera (ranging from 1:10 to 1:10000) were collected after the booster immunization. ELISA was performed to measure the anti-Pn14PS IgG antibody subclass distribution: IgG1, IgG2a, IgG2b, and IgG3. The level of antibodies is expressed as optical density (OD) at 450 nm.